How much of the earth's animal life exists in the oceans?
20%
40%
60%
80%

What type of lipids are found in all biological membranes?

There are specialized producers that live in warm water vents deep in the ocean. these producers do not per-form from photosynthesis, but instead perform a similar process with iron and other chemicals. why do you think these producers use this process instead of photosynthesis?

Which of the following typically characterizes a tropical rainforests